Estimating your trip's gas cost
Gallons used = distance ÷ MPG, and cost = gallons × price per gallon. Enter the distance in miles or km, toggle round trip to double it, and use your real-world MPG for the best estimate.
Everyday & Conversions
Fuel Cost Calculator
Estimate the gas cost of any trip.
Fuel economy (MPG)28
Gas price ($/gallon)$3.50
Fuel cost
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Gallons used
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Frequently Asked Questions
How is trip fuel cost calculated? +
Divide the trip distance by your MPG to get gallons used, then multiply by the price per gallon. Round trip doubles the distance.
How do I find my MPG? +
Check your trip computer, or divide miles driven by gallons used at your last fill-ups.
Can I enter kilometers? +
Yes — switch the distance unit to km; the calculator converts to miles for the MPG-based estimate.
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